Research Article
Clinical and Histopathological Factors Associated with the Tumoral Expression of TGF-β1, MED15, CD16, and CD57 in Oral Squamous Cell Carcinoma
Table 2
Factors associated with the ΔΔCt CD16, calculated using the backward-selection stepwise log-level multiple linear regression.
| Models and parameters | Unstandardized coefficients | Beta | | 95% CI | VIF | B | SE | Low | Up |
| 1 | (Constant) | 3.467 | 3.680 | | 0.353 | −4.020 | 10.953 | | Sex: male | 1.517 | 1.500 | 0.180 | 0.319 | −1.535 | 4.569 | 1.602 | Age at diagnosis | −0.060 | 0.043 | −0.219 | 0.170 | −0.146 | 0.027 | 1.246 | Tumor size (mm) | −0.027 | 0.032 | −0.164 | 0.414 | −0.092 | 0.039 | 2.000 | Depth of invasion (mm) | 0.082 | 0.049 | 0.292 | 0.107 | −0.018 | 0.182 | 1.576 | Histology grade | 0.324 | 1.114 | 0.048 | 0.773 | −1.943 | 2.592 | 1.394 | Necrosis presence | 0.473 | 1.573 | 0.047 | 0.766 | −2.727 | 3.672 | 1.234 | Lymphatic invasion | 0.294 | 2.426 | 0.029 | 0.904 | −4.642 | 5.230 | 2.937 | Vascular invasion | −1.408 | 2.377 | −0.134 | 0.558 | −6.243 | 3.427 | 2.605 | Perineural invasion | −0.945 | 1.380 | −0.111 | 0.498 | −3.754 | 1.863 | 1.342 | Extracapsular nodal extension | 0.818 | 2.784 | 0.048 | 0.771 | −4.846 | 6.482 | 1.380 | Stage | −0.484 | 0.775 | −0.115 | 0.537 | −2.062 | 1.093 | 1.713 | Smoking | 3.696 | 2.007 | 0.316 | 0.075 | −0.387 | 7.780 | 1.494 |
| 8 | (Constant) | 4.038 | 2.528 | | 0.118 | −1.071 | 9.147 | | Age at diagnosis | −0.067 | 0.037 | −0.248 | 0.079 | −0.143 | 0.008 | 1.072 | Tumor size (mm) | −0.031 | 0.026 | −0.190 | 0.239 | −0.083 | 0.021 | 1.442 | Depth of invasion (mm) | 0.066 | 0.044 | 0.235 | 0.146 | −0.024 | 0.155 | 1.432 | Vascular invasion | −1.671 | 1.441 | −0.159 | 0.253 | −4.584 | 1.242 | 1.074 | Smoking | 4.555 | 1.569 | 0.389 | 0.006 | 1.385 | 7.726 | 1.023 |
| 9 | (Constant) | 4.455 | 2.513 | | 0.084 | −0.620 | 9.529 | | Age at diagnosis | −0.077 | 0.036 | −0.284 | 0.040 | −0.151 | −0.004 | 1.015 | Tumor size (mm) | −0.033 | 0.026 | −0.204 | 0.207 | −0.085 | 0.019 | 1.434 | Depth of invasion (mm) | 0.065 | 0.044 | 0.234 | 0.149 | −0.024 | 0.155 | 1.432 | Smoking | 4.646 | 1.573 | 0.397 | 0.005 | 1.468 | 7.823 | 1.021 |
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B, regression coefficient; SE, standard error; beta, standard regression coefficient; CI, confidence interval; VIF, variance inflation factor.
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